Encoded text message

I've revived the above texts from my friend simply called "me". Apparently the text messages tell you everything you need to know. Arrrrrrgh! I told him not to mess with people.

Hint 1:

The kidnapper is a card game.

• That is two messages. ...and if the only condition is that you don't mention the kidnapper's name, why not obviously send your precise location so there's no guesswork? – Ian MacDonald Aug 15 '18 at 17:28
• @IanMacDonald if you combine the messages you should be able to figure out where they are ;) – Yout Ried Aug 15 '18 at 20:44
• @Ian MacDonald One group of messages, but sure. Point out every mistake – Yout Ried Aug 15 '18 at 20:55

Count the number of consecutive letters. For example, Hhhhhhhhh $\rightarrow 9$

Continue this then you get:
9 13 9 14 4 3

We might get a message here...

Perform A1Z26 cipher: IMINDC $\rightarrow$ I'M IN DC
Does it mean you are in Washington, DC?

• Sorry, I didn't appear to add one of the pictures. Sorry about that! – Yout Ried Aug 15 '18 at 16:43